5-Pin Input Jack Wiring - Lectronics DBu Instruction Manual

DBu, DBu/E01

5-Pin Input Jack Wiring

Lavalier microphones and adapter cabling used with
digital body pack transmitters should have the shield wire
connected to the shell of the microphone plug.
This will reduce the RF energy radiated into the micro-
phone cable shield wire from getting back into the trans-
mitter via the audio input.
Digital RF carriers contain both FM and AM components
and greater microphone shielding is required to over-
come induced transmitter radio frequency interference.
The wiring diagrams included in this section represent
the basic wiring necessary for the most common types of
microphones and other audio inputs. Some microphones
may require extra jumpers or a slight variation on the
diagrams shown.
It is virtually impossible to keep completely up to date on
changes that other manufacturers make to their prod-
ucts, thus you may encounter a microphone that differs
from these instructions. If this occurs please call our
toll-free number listed under Service and Repair in this
manual or visit our web site at: www.lectrosonics.com
1 GND 100 Ohm
+
2 5V SOURCE
15uF
3 MIC
4 VOLTAGE SELECT
5 LINE IN
10k
Insert
TA5F Latchlock
Installing the Connector:
1) If necessary, remove the old connector from the
microphone cable.
2) Slide the dust boot onto microphone cable with
the large end facing the connector.
3) If necessary, slide the 1/8-inch black shrink tubing
onto the microphone cable. This tubing is needed
for some smaller diameter cables to ensure there
is a snug fit in the dust boot.
4) Slide the backshell over the cable as shown
above. Slide the insulator over the cable before
soldering the wires to the pins on the insert.
5) Solder the wires and resistors to the pins on the
insert according to the diagrams shown in Input
Jack Wiring for Different Sources. A length of
12
+5 VDC
Servo Bias
Pin 4 to Pin 1 = 0 V
Pin 4 Open = 2 V
Pin 4 to Pin 2 = 4 V
30uF
200 Ohm
To Audio Amplifier
To Limiter Control
+
3.3uF
Backshell with
strain relief
Cable clamp
Insulator
Audio input jack wiring:
PIN 1
Shield (ground) for positive biased electret lavaliere mi-
crophones. Shield (ground) for dynamic microphones and
line level inputs.
PIN 2
Bias voltage source for positive biased electret lavaliere
microphones that are not using servo bias circuitry and
voltage source for 4 volt servo bias wiring.
PIN 3
Microphone level input and bias supply.
PIN 4
Bias voltage selector for Pin 3.
Pin 3 voltage depends on Pin 4 connection.
Pin 4 tied to Pin 1: 0 V
Pin 4 Open: 2 V
Pin 4 to Pin 2: 4 V
PIN 5
Line level input for tape decks, mixer outputs, musical
instruments, etc.
Backshell
without strain
Dust boot (35510)
relief
Note: If you use the dust boot, remove the rubber strain relief
that is attached to the TA5F cap, or the boot will not fit over
the assembly.
.065 OD clear tubing is included if you need to
insulate the resistor leads or shield wire.
6) If necessary, remove the rubber strain relief from
the TA5F backshell by simply pulling it out.
7) Seat the insulator on the insert. Slide the cable
clamp over the and of the insulator and crimp as
shown on the next page.
8) Insert the assembled insert/insulator/clamp into
the latchlock. Make sure the tab and slot align
to allow the insert to fully seat in the latchlock.
Thread the backshell onto the latchlock.
Remove strain relief
if using dust boot
LECTROSONICS, INC.